12g of Mg (at. mass 24) will react completely with acid to give [MNR 1985]

Question: 12g of Mg (at. mass 24) will react completely with acid to give [MNR 1985]

(a) One mole of H₂

(b) 1/2 mole of H₂

(c) 2/3 mole of O₂

(d) Both 1/2 mol of H₂ and 1/2 mol of O₂

Correct Answer: (b) 1/2 mole of H₂

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